There’s a number floating around in your head right now. Maybe it’s $500. Maybe it’s $5,000. Maybe you heard someone on a podcast say they launched an online store for the price of a nice dinner, and you’re wondering if that’s real or just Internet mythology.  Here’s what nobody tells you when you’re Googling “how much does it cost to start an e-commerce store?” The answer depends almost entirely on decisions you haven’t made yet.  And some of those decisions matter way more than others. So let’s walk through the actual costs, piece by piece, so you can figure out what launching looks like for your specific situation. Should you buy an existing domain or register a new one? Your domain name is the first real expense, and it’s also where the price range gets wild fast. Registering a brand-new domain through a registrar like Namecheap can cost you as little as $6 to $15 per year, depending on the extension you choose.…